5138831970 has 40 divisors (see below), whose sum is σ = 13817750364. Its totient is φ = 1370354976.

The previous prime is 5138831959. The next prime is 5138831981. The reversal of 5138831970 is 791388315.

It is an interprime number because it is at equal distance from previous prime (5138831959) and next prime (5138831981).

It can be written as a sum of positive squares in 2 ways, for example, as 4944480489 + 194351481 = 70317^2 + 13941^2 .

It is a Harshad number since it is a multiple of its sum of digits (45).

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 3171309 + ... + 3172928.

Almost surely, 2^5138831970 is an apocalyptic number.

5138831970 is an abundant number, since it is smaller than the sum of its proper divisors (8678918394).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

5138831970 is a wasteful number, since it uses less digits than its factorization.

5138831970 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6344256 (or 6344247 counting only the distinct ones).

The product of its (nonzero) digits is 181440, while the sum is 45.

The square root of 5138831970 is about 71685.6468897366. The cubic root of 5138831970 is about 1725.6583045077.

The spelling of 5138831970 in words is "five billion, one hundred thirty-eight million, eight hundred thirty-one thousand, nine hundred seventy".